Dart (dart2js / dart2wasm)

Dart's official compilers for the web, which turn Dart code into JavaScript for the browser.

Adoption1 site

Ranked 4 of 8 in Compiled-to-Web & WebAssembly1.0% of the 105 tracked sites using Compiled-to-Web & WebAssembly

Pricing: open-source

About Dart (dart2js / dart2wasm)

Dart ships two JavaScript compilers, one tuned for a quick edit-refresh cycle in development and the other for code size and speed in production. Release builds can also target WebAssembly through dart2wasm, invoked as dart compile wasm.

Sources: Dart web platform · Checked 16 Oct 2026

Websites using Dart (dart2js / dart2wasm)

pub.dev

Who added or dropped it

No switches yet. We rescan every site monthly, and any site that adds or drops Dart (dart2js / dart2wasm) shows up here.

Often used with

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Google Cloud100%

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